Ark-0
Ark-0 is a test network for trying things out. It may be reset at any time.

Block 20722

Hash
00000061750e4b4252fac11b3252fa0e33558c10f695ea93ba76db39aa783a55
Confirmations
20589
Time
2026-10-12 00:40:00 UTC
Median time
2026-10-12 00:31:32 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
0b44876effe212acf8b3ed0f16fea92c437bb8b47c1fedc73d8bf1cf13e6479f
Previous block
000000c532ef0cc61e32c029e42e9a5b9d258b6a72586785b776232d6018a2be
Next block
0000004affb4b9172a05ffb0c4304c8438be3f3c19a94eb33ca3a8e6a01afcb1

ML-DSA-44 block signature (M2)

M2 is an experimental rule of this test network. From a height set in its build, a node that enforces M2 accepts a block only if, besides the classical signet signature, the block carries a valid ML-DSA-44 signature by the Ark-0 block key, in its coinbase's witness commitment output. This page shows that signature; it does not check it.

Block 20722 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
cdd634fc97581123d7a15bbbc8a6e3ed… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0b44876effe2…f1cf13e6479f coinbase1250